Sūn Jiǒng 孫炯 (fl. late 17th – early 18th c.). Grandson of 孫承澤 (Sūn Chéngzé, 1592–1676), one of the great post-1644 Beijing connoisseurs and antiquarians. Inherited the family studio Yànshān zhāi 硯山齋 (“Inkstone-Mountain Studio”) and the Sūn family’s antique holdings. Author of the Yàn shān zhāi zhēn wàn jí lǎn 硯山齋珍玩集覽 and probable author of the Yàn shān zhāi zá jì 硯山齋雜記 (KR3j0177) — the latter cataloged as anonymous by the Sìkù editors but on internal evidence (citation of Zhā Shènxíng’s Jìngyè táng shī and Wáng Shìzhēn’s Jūyì lù, both completed after Sūn Chéngzé’s death) attributable to Sūn Jiǒng. The Yànshān zhāi zá jì covers the liù shū, seals, engravings, inkstones, inks, eyeglasses, bronzes, and ceramics — a wide range of kǎozhèng material-culture topics inherited from the family connoisseurship tradition.